Filter for a vacuum cleaner



FIG. 1 is a perspective view of a filter for a vacuum cleaner showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a right side elevational view thereof, the left side being a mirror image;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a cross-sectional view thereof, taken along line 6--6 in FIG. 5; and,

FIG. 7 is a front elevational view thereof. 

The ornamental design for a filter for a vacuum cleaner, as shown and described. 